policy: Allow any transaction version with < minrelay

Prior to cluster mempool, a policy was in place that
disallowed non-TRUC transactions from being
TX_RECONSIDERABLE in a package setting if it was below
minrelay. This was meant to simplify reasoning about mempool
trimming requirements with non-trivial transaction
topologies in the mempool. This is no longer a concern
post-cluster mempool, so this is relaxed.

In effect, this makes 0-value parent transactions relayable
through the network without the TRUC restrictions and
thus the anti-pinning protections.

test/functional/mempool_ephemeral_dust.py

@@ -207,18 +207,16 @@ class EphemeralDustTest(BitcoinTestFramework):
         self.connect_nodes(0, 1)
         assert_mempool_contents(self, self.nodes[0], expected=[])
 
-    # N.B. If individual minrelay requirement is dropped, this test can be dropped
     def test_non_truc(self):
-        self.log.info("Test that v2 dust-having transaction is rejected even if spent, because of min relay requirement")
+        self.log.info("Test that v2 dust-having transaction is also accepted if spent")
 
         assert_equal(self.nodes[0].getrawmempool(), [])
         dusty_tx, sweep_tx = self.create_ephemeral_dust_package(tx_version=2)
 
         res = self.nodes[0].submitpackage([dusty_tx["hex"], sweep_tx["hex"]])
-        assert_equal(res["package_msg"], "transaction failed")
-        assert_equal(res["tx-results"][dusty_tx["wtxid"]]["error"], "min relay fee not met, 0 < 15")
-
-        assert_equal(self.nodes[0].getrawmempool(), [])
+        assert_equal(res["package_msg"], "success")
+        assert_mempool_contents(self, self.nodes[0], expected=[dusty_tx["tx"], sweep_tx["tx"]])
+        self.generate(self.nodes[0], 1)
 
     def test_unspent_ephemeral(self):
         self.log.info("Test that spending from a tx with ephemeral outputs is only allowed if dust is spent as well")